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SCREW JACKS AND LINEARACTUATORS

Machine Screw Jacks

Ball Screw Jacks

ComDRIVE Actuators

Metric Screw Jacks

Electric Cylinders

Integrated Actuators

Linear Actuators

Stainless Steel Screw Jacks

Bevel Gear Jacks

Bevel Ball Actuators

Protective Boots

Limit Switches

System Accessories

JAX Online The Fastest Way to Your Ideal SystemWeb-based Linear Motion Design Software

Create your account and start designing right away at www.joycedayton.com/jax

1-800-523-5204 | [email protected]

Easy-to-use JAX Online software enables you to specify the right jacks and components for your ideal lifting and positioning systems. You can start with a complete set of requirements, or just a few simple inputs, and let JAX Online suggest components that are right for your application. The detailed reports created are complete and ideal for inclusion in technical project files, saving you time and minimizing headaches.

Use JAX Online to:

Size jacks and complete systems, from any computer

Automatically configure and download 2D and 3D models of specific jacks

Save files to your private account and return to your designs at anytime

Evaluate multiple combinations and options before choosing your final design

Automatically generate a bill of materials in real-time

Request a quote and transmit your requirements with a single click

JAX Online is one more example of how Joyce is committed to providing designers and engineers with the tools they need to succeed.

ENGINEERING INFORMATION

MACHINE SCREW JACKS

MACHINE SCREW ComDRIVEs

STAINLESS STEEL SCREW JACKS

METRIC SCREW JACKS

BALL SCREW JACKS

BALL SCREW ComDRIVEs

ELECTRIC CYLINDERS

INTEGRATED ACTUATORS

LINEAR ACTUATORS

BEVEL GEAR JACKS

BEVEL BALL ACTUATORS

OPTIONS, ACCESSORIES AND CONTROLS

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TABLE OF CONTENTSEngineering Information

Jack Cutaway Illustrations ............................................................. 4Quick Reference Guide ................................................................. 6Options Overview .......................................................................... 7Selection Guide Worksheet Jacks and Actuators ..................... 8Selection Guide Worksheet Controls ......................................... 9Product Selection Factors ........................................................... 10Column Load Factors ................................................................. 11Jack Designs ............................................................................... 12Torque and Horsepower ............................................................. 13Options, Accesories and Controls .............................................. 14FAQ ............................................................................................. 16

Machine Screw Jacks ....................................................... 18Ordering Information ................................................................... 20

Machine Screw ComDRIVEs ........................................... 45Ordering Information ................................................................... 46

Stainless Steel Screw Jacks ............................................. 58Ordering Information ................................................................... 60

Metric Screw Jacks ........................................................... 71Ordering Information ................................................................... 72

Ball Screw Jacks ............................................................... 80Ordering Information ................................................................... 82

Ball Screw ComDRIVEs ................................................... 102Ordering Information .................................................................104

Electric Cylinders ............................................................ 118Ordering Information .................................................................120

Integrated Actuators ....................................................... 135Ordering Inforamtion .................................................................137

Linear Actuators .............................................................. 143Ordering Information .................................................................144

Bevel Gear Jacks ........................................................... 148Ordering Information .................................................................150

Bevel Ball Actuators ........................................................ 159Ordering Information .................................................................160

Options, Accessories and Controls ................................ 168Boots for Machine Screw Jacks............................................... 170Boots for Ball Screw Jacks .......................................................171Boots for KFTN Jacks ...............................................................172Limit Switches ...........................................................................174Geared Potentiometers .............................................................175Encoders ...................................................................................176Servo Motor Mounts .................................................................178Motor Mounts and Stock Motors .............................................179Hand Wheels and Counters .....................................................180Anti-Backlash Designs ..............................................................181Finishes......................................................................................182Trunnion Mounts .......................................................................183Pillow Blocks and Flange Blocks ..............................................184Miter Gear Boxes ......................................................................185Couplings ..................................................................................188Shafting .....................................................................................190Motor Controls ..........................................................................192Common System Arrangements ..............................................195

joycedayton.com Custom products are available Contact Joyce with your requirements

[email protected] 800-523-52044

WORMGEAR STYLE JACK UPRIGHT TRANSLATING STYLE SHOWN

Load Pad End Condition

Jack must be attached to load and rotation must be restrained.Keyed machine screw jacks are available (WJ 500 and larger).

Protection Tube

Grease Fitting

Mounting Bolt Holes

Lifting Screw

Standard end conditions, Plain (T1), Load Pad (T2), Threaded (T3) and Male Clevis (T4).

Sleeve (housing)

Material varies based on size of jack. See note below.

Thrust Bearing

Upper (shown) and lower (not shown) permit jack to bear load in both directions.

Wormgear

Made from aluminum bronze material.

Sleeve/Sleeve Cap Material

250-lb 1-ton Aluminum 2-ton 35-ton Ductile Iron 50-ton 250-ton Steel Options 2-ton Stainless Steel 5-ton 25-ton Stainless Steel 5-ton 35-ton Steel

Bearing Cap

2-ton and larger jacks smaller jacks have retaining rings.

Sleeve Cap

Threaded onto sleeve and secured with set screws. See note below for material.

Input Shaft Bearing

One bearing supports each end of the input shaft.

Input Shaft (worm)

Standard input shaft extends to the right and the left. Shaft modifications are available.

Input Shaft Seal

Standard on 2-ton and larger jacks.

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BEVEL GEAR STYLE JACK UPRIGHT TRANSLATING STYLE SHOWN

Sleeve Cap

Made from ductile iron.

Sleeve (housing)


Cover Plate

Made from ductile iron. Up to two required depending on the number of input shafts.

This graphic shows a Joyce Bevel Gear jack (BG). Bevel ball actuators (BB) also use a bevel gear set. See pages 148 - 167 for more information.

Spiral Bevel Gear

One per jack assembly.

Pinion Gear

Fill and Drain Port

Located in sleeve (not shown).

Carrier Housing


Input Shaft Bearings

Input Shaft

Up to three per jack depending on system requirements.

Input Shaft Seal

Upper Seal Fill Vent

Threaded End Condition

Standard end conditions, Plain (T1), Load Pad (T2), Threaded (T3), and Male Clevis (T4).

Lifting Screw

Jack Nut

Aluminum bronze material BG jack shown (BB jack uses a ball nut with a ductile iron adapter).

Upper Thrust Bearing

Lower Thrust Bearing

Protection Tube

Grease Fitting

Mounting Bolt Holes

Product Prefix Capacity Range (tons)

Typical Lifting Speeds (IPM)

Input Shaft Predictable Life

Inherently Self-Locking

Corrosion Resistant

Enclosed Screw

Options

In-Line Right Angle

Keyed for Non-Rotation

Limit Switch

Direct Drive Motor Mount

Anti-Backlash or Limited End Play

Machine Screw Jack(pp. 18-44)

WJ RWJ DWJ

DRWJ

1/8-250 14-55

A

WJ, RWJ

C

Machine Screw ComDRIVE(pp. 45-57)

CD DCD

2-30 2-35

A

CD

C

Stainless Steel Jack(pp. 58-70)

SWJ RSWJ DSWJ

DRSWJ

2-25 14-55

A

SWJ, RSWJ

Metric Jack(pp. 71-79)

MWJ 1-10 (10-100

Kn)

14-55 (6-23 mm/

sec)C

Ball Screw Jack(pp. 80-101)

WBL HWBL

WB HWB

1-50 14-300

Screw Only

C D

Ball Screw ComDRIVE(pp. 102-117)

CDB CDBL

2-30 2-55

Screw Only

C D

Electric Cylinder - Standard(pp. 118-134)

ECA ECB

2 1/2-20 15-540

ECB

Screw Only

B

ECA

C D

Electric Cylinder - Motor Mount(pp. 118-134)

ECA ECB

2 1/2-20 18-540

ECB

Screw Only

B

ECA

C D

Electric Cylinder - ComDRIVE(pp. 118-134)

ECA ECB

2 1/2-20 15-104

ECB

Screw Only

B

ECA

C D

Integrated Actuator(pp. 135-142)

IA DIA BIA

HBIA

1 15-350

BIA, HBIA

Screw OnlyIA

C D

Linear Actuator(pp. 143-147)

LA 3/4 15-70

Bevel Gear Jack(pp. 148-158)

BG 5-60 50-130

A Single Lead

C

Bevel Ball Actuator (pp. 159-167)

BB 5-60 15-600 C D

A Jacks with single lead screws are self-locking. Double lead screw jacks may lower under load.

B ECA jacks that are 30% efficient are self-locking.

C Joyce offers a variety of finishes and modifications that resist corrosion (p. 182).

D Oversized ball bearings can be added to limit the end play between the ball screw and ball nut.



QUICK REFERENCE GUIDE

Protective Boots (pp. 170-173) Protection from dirt and dust Guard against moisture Guard against corrosive

contaminants Neoprene coated nylon (std) Special materials available

Motor Mounts (pp. 178 & 179) NEMA mounts available on 2-ton

to 20-ton wormgear jacks and electric cylinders

NEMA mounts included on integrated actuators

Servo motor mounts available on 2-ton to 10-ton jacks and electric cylinders, special mounts available

Custom mounts available

Anti-backlash Devices (p. 181) Available for machine screw jacks Available for metric (trapezoidal) jacks Limits lifting screw endplay

Oversized Ball Bearings Available for ball screw jacks Limits screw backlash to 0.003"

Input Shaft (worm) Square or hex to fit tool Special lengths 17-4 stainless steel available Metric diameters available One side can be cut off Other modifications available Input shaft cover available

Lubrication Standard grease temperature range

(40F to 220F) Low temperature option High temperature option Food grade option

Machine Screws Right hand thread standard Left hand thread available

on many models Special material available Special pitch/lead available Special finishes available Special machining options Special end conditions available

Ball Screw Options Right hand thread standard Left hand thread available

on many models Special pitch/lead available Special finishes available Special machining options

Wormgear Sets Right hand gear set standard Left hand available on many models 25:1 ratio option available on

several models

ComDRIVE Options (pp. 47 & 105) Special reducer ratios available Special mounting positions available Special motor adapters available Mount limit switch to gear reducers

Hand Wheels (p. 180) 4" 12" dia. (standard) Aluminum (standard) Stainless steel available

Potentiometers (p. 175) 0-10V (POTA) 4-20mA (POTB) 0-10V with limit switches (POTC) 4-20mA with limit switches (POTD) IP65

Limit Switches (p. 174) Rotary cam (2-4 switches) SPDT standard DPDT available Explosion proof available

Encoders (pp. 176-177) Standard 200 or 1024 PPR Quadrature wave form Stainless steel encoder Absolute encoder

Mechanical Counters (p. 180) 0.001" increments (CNT0)

Screw Stops Standard on ComDRIVEs Adjustable Bolt-on

Finishes (p. 182) Enamel finish (standard) Epoxy finish STEEL IT epoxy Outdoor paint process Custom finishes available Anodized (250-lb to 1-ton) Nickel, Xylan, Armoloy

Thrust Rings Used in applications

where static loads exceed jack capacity

Follower Nuts (p. 17) For KFTN jack For translating jack



OPTIONS OVERVIEW FOR JACKS AND ACTUATORS



SELECTION GUIDE WORKSHEET JACKS AND ACTUATORSName Title

Company Project

Address

Phone Fax Email

System ConsiderationsNumber of Jacks Load per Jack System Load Travel Speed

Type of Gear Set Type of Screw Configuration Mounting Orientation

Worm Gear Machine Screw Upright Horizontal Bevel Gear Ball Screw Inverted Vertical

Load Rise/Stroke Product Family Jack Design

Tension (T) Inches Screw Jack Translating Compression (C) Millimeters Electric Cylinder Keyed (non-rotation) Both T & C Actuator Traveling Nut (flush mount)

End Condition Static Side Load Power Requirements

T1 Plain Yes Manual (Machine screws) T2 Load Pad No Electrical V. Hz. ph. T3 Threaded Other T4 Male Clevis

Environmental and Other ConsiderationsTemperature Environment Duty Cycle Description of Cycle

Standard +40 F to +220 F Dust Dirt Cycles/Minute Frequency + F to - F Sand Water Cycles/Hour Dwell Time + C to - C Oil Outdoor Cycles/Day Other

Wash Down

System Will Lift System Will Lower System Controls

Full Stroke Full Stroke Motor Starter Partial Stroke Partial Stroke Synchronizing Controls Incrementally Incrementally Programmable Controls

Custom Controls Options and Accessories

Protective Boots Motor Mount Food Grade Grease Miter Gear Box Encoder Limit Switches Servo Mount Outdoor Paint Gear Reducer Counter Screw Stops Motor/Brake Motor Epoxy Paint Shafting/Couplings Geared Pot. Anti-backlash Hand Wheel Trunnion Mount Stainless Steel Pillow Blocks

Please list additional information and include a drawing of your application.

Joyce/Dayton Corp., P.O. Box 1630, Dayton OH 45401 [email protected], FAX 937-297-7173



SELECTION GUIDE WORKSHEET CONTROLSName Title

Company Project

Address

Phone Fax Email

System Information Number of Jacks Number of Motors Are Jacks: Mechanically Synchronized Electrically Synchronized Independently Operated

System Environment Enclosure Requirement Approvals

Indoor/General Purpose NEMA 4 Std. Indoor/Outdoor UL Listed Outdoor NEMA 4X Washdown CSA Approval Wash Down NEMA 12 Indoor Other Explosion Proof Other Coastal/Salt Spray

What aspect of operation Motor needs to be controlled? Requirements

Position Horsepower Frequency Travel Speed Voltage Brake required YES NO Both Position and Travel Speed Phase Brake Voltage Other (Leveling) Brake Wiring Internal

External (for variable frequency drives)Motor Operation Motor Enclosure

Variable Speed Totally Enclosed TEFC Constant Speed Wash Down Multiple Speed (preset) Explosion Proof Inch/Jog (stepper) Synchronous

Primary Control Requirement

Momentary Operation Maintained Operation Constant Torque Synchronized Travel Programmable Positions Tolerance _____+/- inch mm

One to Four Variable Speed More than Four Range of frequency _______

Accuracy for Positioning Soft Start Operation _____+/- inch mm Rate (in/min2) _______ Number of starts/hour _______ Control Options

Alarms Indicators Pendant Control Wireless Control HMI/Touch Screen

Other Considerations

Please describe the order of operation and other functional requirements of your system:

Joyce/Dayton Corp., P.O. Box 1630, Dayton OH 45401 [email protected], FAX 937-297-7173

10 joycedayton.com Custom products are available Contact Joyce with your [email protected] 800-523-5204

ENGINEERING INFORMATION PRODUCT SELECTION CRITICAL FACTORS1. Maximum Input RPM Input rotational speeds up to 2400 RPM are

permissible for jacks and actuators depending on load, duty cycle, and other factors specific to the application. Use our exclusive JAX Online browser-based software to evaluate jacks and systems having input RPM values to 1750 RPM.

2. Side Load Standard jacks and actuators are not designed for dynamic side loads. The load must be positioned axially. Static side loads are limited. Contact Joyce for technical assistance.

3. Duty Cycle Relationship between operation time and rest time. The allowable duty cycle for jacks and actuators is based upon several application variables such as load, speed, and temperature. Consideration must be given to the severity of the duty cycle during the product selection phase. Our Application Engineers are available to discuss your requirements.

4. Self-Locking Jacks Screw jacks that require power to raise or lower. Exceptions include machine screw jacks having double lead screws and ECA electric cylinders that are more than 30% efficient and all ball screw jacks. A brake must be used on the input shaft of any jack that is not self-locking. A brake should also be included for applications that expose the jack or actuator to vibration. Contact Joyce for more information.

5. Jacks That Require a Brake Motor Any jack that will lower under load requires a brake motor. This includes ball screw jacks (WB, HWB, WBL, HWBL), ball screw ComDRIVEs (CDB, CDBL, CDHB, CDHBL), ball screw electric cylinders (ECB), ball screw integrated actuators (BIA, HBIA), and bevel ball actuators (BB). Machine screw jacks with double lead screws and WJ500 jacks may also require brakes to hold postion.

6. Travel Speed Limitations Typical travel speeds for various jacks and actuators are measured in inches per minute (IPM). Speeds depend on the input RPM, load, internal ratio and lead of the screw. Maximum allowable travel speeds for machine screw jacks are typically slower than ball screw jacks. Wormgear jacks typically have slower travel speeds than bevel gear jacks. Refer to the JAX Online browser-based software for more detail or contact Joyce to talk with an application engineer.

7. Maximum Screw Length Maximum distance from the base of the jack to the end of the extended screw. It is limited by the column load in compression. Refer to column load charts throughout this catalog or use the JAX Online browser-based software. Contact Joyce with questions.

8. Calculated Life for Machine Screws There is no formula available to calculate the life of a machine screw. If a calculated life for the screw jack is required, specify ball screw jacks, ball screw ComDRIVEs, ball screw electric cylinders, ball screw integrated actuators, or bevel ball actuators.

9. Calculated Life for Ball Screws The calculated life for ball screws is based on the ball nut life. This information is available for all ball screw jacks, ball screw ComDRIVEs, ball screw integrated actuators, bevel ball actuators, and ball screw electric cylinders (ECB). Register at joycedayton.com/register to use JAX Online browser-based software, or contact Joyce with your requirements.

10. Screw Stops Stops are offered as options for screw jacks and actuators, and are not to be used as operating limits. Engaging the stop may prevent damage to your structure but will most likely damage the jack. To control jack or actuator travel, include travel limits in the system design. Stops may increase the closed height of the jack and the length of the protection tube. Refer to specific ordering sections in the catalog or contact Joyce for more information. Note: Adjustable screw stops are standard on most Joyce ComDRIVE jacks.(The extending stop on 15- and 50-ton jacks and ComDRIVEs is threaded on and functions as a fixed stop.)

11. Adjustable or Fixed Screw Stops Adjustable screw stops are used most frequently. They are secured against the lifting screw with set screws and can easily be repositioned. Fixed screw stops are positioned at the factory and their position cannot be adjusted. Fixed extending screw stops, when used, are standard on extending stops for both 15- and 50-ton machine screw jacks.

12. Hard Stops Jacks are not designed to operate into a hard stop. Sudden impacts and shock loads may cause damage to jacks and actuators. Customers are responsible for providing travel limits to avoid this situation.

13. Standard Operating Temperature The standard operating temperature range for most products is 40F 220F. There are some exceptions. For operation outside this range, special lubricants and seals can be provided.

14. Lubrication of Wormgear Jacks Standard wormgear jacks are lubricated with NLGI grade #1 grease prior to shipment. Specific information and commercial brand names can be found in the Operation & Maintenance Manuals, which are available at joycedayton.com.

15. Lubrication of Bevel Gear Jacks Bevel Gear jacks use both NLGI grade #1 grease and oil. The upper bearing and jackscrew are grease lubricated while the remaining internal components are oil lubricated. These jacks are grease lubricated prior to shipment; however, oil must be added to the unit prior to operation. Bevel Ball Actuators are typically grease lubricated with NLGI grade #1 grease prior to shipment.

16. Horizontal Mounting When jacks are mounted horizontally, Joyce recommends that the input shaft (worm) be mounted below the lifting screw and parallel with the horizon. This position provides the most lubrication to the input shaft (worm), and to both worm shaft bearings. The load capacity of the jack may be reduced when the lifting screw is mounted horizontally. Bevel gear jacks are designed to be mounted vertically with the flange base down but can be adapted for other mounting orientations. Consideration must be given to the position of vents and oil fittings to ensure proper lubrication levels.

17. High Screw RPM and Long Screw Lengths Keyed for traveling nut (KFTN) jacks with long screw lengths require additional support when the screw rotates at high RPM.

18. Direct Drive Considerations Whenever the input worm shaft is driven directly from a motor, designers should consider the starting torque capacity of the motor, handwheel, or other power train device. Torque values calculated in JAX Online software are based on running torque and selection of motor horsepower may require additional consideration.

Technical Questions Our qualified and experienced Application Engineers are available Monday through Friday, 8 a.m. - 5 p.m., EST.

Contact Joyce to discuss specific application questions and technical questions.

[email protected] 800-523-5204 (USA and Canada) 937-294-6261

Tools for Engineers and Designers Register at joycedayton.com/user/register to access 2D/3D drawing software and our exclusive JAX Online browser-based software.

11800-523-5204 Custom products are available Contact Joyce with your [email protected] joycedayton.com

ENGINEERING INFORMATION COLUMN LOAD CRITICAL FACTORSColumn Loading Capacity

The type of load on a jack, and the way the jack is mounted, affects its load bearing capacity. There are two types of possible jack loads, tension and compression. A jack is under tension when its load pulls the screw away from the jack. It is under compression when the load pushes the lifting screw toward the jack (see diagrams). A jack can be under tension or compression regardless of jack positioning (i.e., vertical, horizontal, upright, or inverted).

When tension loaded, the jack retains full rated capacity. Under compression loads, the screw may not be able to support full capacity. For example, a 2-ton jack with a 15" screw length will be limited to 2293 pounds in compression, about half the jacks capacity. In compression the load, screw length and jack mounting configuration determine the load capacity of the screw. The examples shown illustrate four common mounting configurations.

Unguided

If the screw is the only support for the load, it is considered unguided. The screw must be large enough to support the load and prevent buckling. On the Column Loading charts, use the row labeled unguided for the allowable lengths for this design. The Column Loading charts are located within the appropriate product sections of the catalog.

Trunnion Mounting

In a trunnion mounting arrangement, the screw has a pivot on the end and the jack body is mounted on a large pivoting frame, or trunnion. This type of mounting is particularly common in the antenna industry. In practice, the pivot should be as close to the centerline of the internal nut as design permits. This will eliminate moment loads caused by loose threads. Use the trunnion row on the Column Loading charts found within the appropriate product sections of the catalog.

Guided

Guided loading is often termed fixed-fixed loading. With guided loading, both ends of the column are rigidly held the jack body is bolted firmly to a sturdy base, and the load travels on slides, bearings, rollers or other means. The guides should be snug enough to prevent any side load or moment load from reaching the screw. Use the guided row on the appropriate Column Loading charts.

Double-Clevis Mounting

Double-clevis jacks have less load capacity than the other common mounting configurations. A double-clevis jack has pivots or clevises at both ends: one on the screw tip and one on the end of the protection tube. This tends to weaken it as a column by creating eccentric loads on the screw. This eccentricity tends to increase with greater distance and higher loading. For this reason, double-clevis jacks are limited both in

capacity and maximum length. Double-clevis mounting differs from trunnion mounting because the pivot is located farther from the jack body. The Column Loading charts do not apply for this mounting. Please consult Joyce for load bearing information.

How to use the Column Loading charts:

Note: Charts for machine screw jacks, machine screw ComDRIVEs, metric screw jacks, ball screw jacks, ball screw ComDRIVEs, stainless steel jacks, bevel gear jacks, and bevel ball actuators are located within the specific product section of the catalog. These charts only apply to jacks with axial loads. For side loads, offset loads, and horizontal mounting, contact Joyce.

1. Determine the type of jack you wish to use and locate that column load chart which is found near the beginning of each product section.

2. Determine the proper mounting arrangement for your application. Locate the appropriate row and find the screw length at the bottom of the chart.

3. Find the load you need to move (in pounds or kilonewtons) on the left side of the chart.

4. Find the point on the chart where the load and length intersect. Choose a jack whose line is on or above this intersection.

5. Add the length of the end condition you have chosen and any additional screw extension to the screw length to find the unbraced screw length. Verify your selection using the unbraced length.

Example:

A jack must lift 5 tons (10,000 pounds) over a distance of 31 inches. The load places the screw in compression. The jack is mounted firmly by its base, and the load is attached to a load pad (Type 2 end) and is not guided.

1. In this example, a machine screw jack will be used so locate the Column Loading chart for machine screw jacks on page 24.

2. Look at the unguided row at the bottom of the machine screw jack Column Loading chart and find the 31" mark.

3. From this, the 10-ton double lead jack is selected. Look at the dimensions from the jack body for the Type 2 end for this jack. The Type 2 end adds 2" from the top of the jack to the end of the screw. Thus the total unbraced length of the screw is 31" + 2"= 33".

4. Use this new unbraced screw length to verify your selection. In this case, the intersection point still falls below the 10-ton double lead jack line, so this selection is correct.

TensionCom pres sion

Un guid ed

Trunnion Mount

pivot

Guided

Double-Clevis


ENGINEERING INFORMATION JACK DESIGNSJoyce Translating Design Jacks

A driven worm acts on an internal wormgear, which in turn drives a lifting screw to extend or retract. As the lifting screw translates through the body of the jack, inherent screw rotation is prevented by an attached load or mounting structure either of which is anchored to resist rotation.

This design is available for: Machine Screw Jacks Machine Screw ComDRIVEs Stainless Steel Jacks Metric Screw Jacks Ball Screw Jacks Ball Screw ComDRIVEs Bevel Gear Jacks Bevel Ball Actuators

Joyce Keyed Design Jacks

Some loads do not prevent lifting screw rotation. These applications require a keyed jack. A key, fixed to the jack housing and inserted into a keyway milled into the lifting screw, forces the lifting screw to translate without rotating. Several dimensions of the keyed jack differ from the translating jack check the keyed jack drawings for each jack model.

This design is available for: Machine Screw Jacks (except WJ250) Machine Screw ComDRIVEs Stainless Steel Jacks Metric Screw Jacks Bevel Gear Jacks

Joyce Keyed for Traveling Nut (KFTN) Jacks

A keyed for traveling nut jack (sometimes referred to as a rotating screw jack) features a lifting screw keyed to the wormgear as a single unit, forcing the lifting screw to rotate, but not translate. A flanged traveling nut, attached to the load, is driven by the rotation of the lifting screw. This type of jack is ideal for applications that cannot accommodate a screw protection tube or that require a flush mount. Refer to the keyed for traveling nut (KFTN) dimensional drawings for each jack model.

This design is available for: Machine Screw Jacks Machine Screw ComDRIVEs Stainless Steel Jacks Metric Screw Jacks Ball Screw Jacks Ball Screw ComDRIVEs

Integrated Actuators Bevel Gear Jacks Bevel Ball Actuators


ENGINEERING INFORMATION TORQUE AND HORSEPOWER

Example 1 Calculate the horsepower needed to move a load on a single jack (WJT242).

WJT242 has a torque constant of 0.009W with (W) representing the load in pounds and a tare torque of 4 inch-pounds (page 22). Using 350 RPM on the input shaft and a 2000-pound load results in the following horsepower equation: (350 RPM x 2000 lb x 0.009 + 4 in. lbs) / 63,025 = 0.10 HP

Note: Unlike bevel gear jacks and bevel ball actuators, wormgear style jack input torque requirements vary with input speed, therefore the constants listed in the catalog are only accurate for the RPM listed. To calculate horsepower at speeds other than those listed, please refer to the free JAX Online browser-based software or fill out a selection guide (page 8) and contact Joyce .

Example 2 Calculate the horsepower needed to move a system load (WJT125).

Find the horsepower required to raise a system load of 28,000-pounds, a distance of 10 inches, at a speed of 11 in./min., using four WJT125 jacks (page 22). The load per jack is 7000 pounds.

A. Determine input speed: 32 turns of the input shaft = 1 inch of linear travel. (32 turns/inch x 11 inches/min = 352 RPM input)

B. Determine the input operating torque plus tare torque for one jack: (0.025 in. lbs. x 7,000) + 10 in. lbs = 185 in. lbs

C. Determine the input horsepower for one jack: (352 rpm x 185 in. lbs)/ 63,025 = 1.03 HP per jack

To calculate the horsepower required when operating a jack system, it is usually easiest to separate the system into sections. For example, the H system can be viewed as two jack systems joined by a speed reducer in the center.

Always remember to take into account the inefficiencies of miter boxes and gear reducers when calculating system horsepower requirements. (For this exercise use 90% efficiency for miter boxes and gear reducers, but in actual systems efficiencies may differ.)

D. Determine horsepower required for Section 1: Total horsepower required for the left side of the system = 1.03 HP per jack x 2 jacks = 2.06 HP 2.06 HP / .9 = 2.29 HP required into miter box of Section 1. Since Sections 1 and 2 are identical, Section 2 also requires 2.29 HP.

E. Determine horsepower required for Sections 1 and 2: 2.29 HP + 2.29 HP = 4.58 HP

Account for the inefficiency of the central gear reducer to determine the total system horsepower requirement.

4.58 HP / 0.9 = 5.08 HP required to operate this system

Operating Torque Constants and Tare Torque values can be found on specification pages. Use the following formula to calculate horsepower:(RPM x Load (lb) x Operating Torque Constant + Tare Torque)/ 63025 = Horsepower

WJT125 jack 7,000 lbs. load

Section 1 Section 2

D. 1.03 HP from each jack into reducer 1.03 x 2 = 2.06 HP

Assume 90% ef fi cien cy 2.06 0.9 = 2.29 HP input to each section

E. Two sections each requiring 2.29 HP x 2 = 4.58 HP

Estimating 90% efficiency, 4.58 HP 0.9 = 5.08 HP required from motor

A. 352 rpm

B. 185 in. lbs. input

C. 1.03 HP required


Shafts and Couplings

See pages 188-191

ENGINEERING INFORMATION OPTIONS, ACCESSORIES AND CONTROLSSHAFT MOUNTED OPTIONS

Rotary Cam Limit Switches

See page 174

String Encoder and other Linear Displacement devices

Proximity Switches

Contact Joyce

Mechanical Counters

See page 180

Geared Potentiometer 0-10V or 4-20Ma

See page 175

ACCESSORIES

Pillow Block and Flange Block Supports

See page 184

Miter Gear Boxes

See pages 185-187

Speed Reducers

Contact Joyce

Joyce jacks and actuators are at the heart of linear motion systems in thousands of applications worldwide.

Encoders Standard, 200 or Optional 1024 PPR

Stainless steel Encoder 1024 PPM

Absolute Encoder

See pages 176-177


ENGINEERING INFORMATION OPTIONS, ACCESSORIES AND CONTROLSDRIVE OPTIONS

Hand Wheels

See page 180

Specialty Motors

AC or DC

Air

IEC Frame

Gear Motor

International Voltages

Single Phase

Brake Motors

Direct Drives

Stock AC Motor Mounts See page 179

Servo Motor Adapters See page 178

Stepper Motor Adapters Available

Custom Adapters

Actuator Controls

120 VAC - 120 VAC

120 VAC - 12 VDC

12 VDC - 12 VDC See page 194

Motor Starters

Momentary Contact Motor Starters See page 192

Custom Controls include Synchronized Systems, Positioning Systems, and Leveling Systems

Contact Joyce

MOTOR CONTROLS

VARIABLE SPEEDPOSITIONING SYSTEMVariable Speed Positioning

System (VSPS)

10 Programmable Preset positions See page 193

ComDRIVE Self-contained actuators combine jack, gear reducer and motor in a single compact unit.

Machine Screw ComDRIVE See pages 45-57

Ball Screw ComDRIVE See pages 102117

Electric Cylinder ComDRIVE See pages 118-134

Square or Hex ends on worm input

Contact Joyce


ENGINEERING INFORMATION FAQ1. What is the difference between upright

and inverted jack configurations? The difference between an upright and an inverted jack is the location at which the lifting screw exits the jack relative to the jack base. For example, an upright jacks lifting screw exits the jack opposite the base. An inverted jacks lifting screw exits the jack on the same side as the base. The choice between inverted and upright jack is dependent upon the application. Note: An upright jack mounted upside down is still referred to as an upright jack.

Upright Inverted

2. How can I determine worm shaft rotation extending the lifting screw? Refer to the views of the standard jack with right hand screw threads below:

- For an Upright jack: CCW rotation of right input shaft extends the lifting screw. CW rotation of the left shaft extends lifting screw.

- For an Inverted jack: CW rotation of right input shaft extends lifting screw. CCW rotation of the left shaft extends lifting screw.

3. How is the linear travel speed calculated? Each screw jack and actuator has an inherent number of input shaft turns per inch (TPI) of screw travel. TPI is the result of the jacks gear ratio divided by the lifting screw lead. The TPI can be found on jack specification pages at the beginning of many product sections. A model WJT242 has a TPI of 96. If 350 RPM is applied to the input shaft, the resultant linear speed of travel is 350/96 or 3.65 inches per minute.

4. Are screw jacks lubricated prior to shipment? All Joyce machine screw jacks and ComDRIVEs, ball screw jacks and ComDRIVEs, bevel ball actuators, integrated actuators, and electric cylinders are lubricated with an extreme pressure NLGI grade #1 grease before leaving the factory.

Bevel gear jacks are lubricated with NLGI grade #1 grease and oil. The upper bearing and jackscrew are grease lubricated while the remaining internal components are oil lubricated. They are grease lubricated prior to shipment; however oil must be added to the unit prior to operation.

Linear actuators (LA) are lubricated for life.

5. What are the standard end conditions for screw jack lifting screws? The following standard end conditions are available on Joyce screw jacks:

- Type 1 plain turned end

- Type 2 load pad with mounting holes

- Type 3 male threaded end

- Type 4 male clevis end

Contact Joyce for information about custom end conditions.

6. How is the clevis, T4 end, positioned on a keyed jack?

- Standard clevis mounting position the hole in the clevis end is parallel with the worm input shaft.

- Optional mounting position the hole in the clevis end is perpendicular to the worm input shaft.

Standard Optional

7. How is the load pad, T2 end, positioned on keyed jacks?

- Standard load pad mounting position the holes on the load pad are on the jack centerlines.

- Optional load pad mounting position the holes on the load pad end straddle the jack centerlines.

Standard Optional

How can I determine shaft rotation?

Upright Jack Inverted Jack

What is the difference between upright and inverted jack configuration?

Base

Upright Jack

Inverted Jack

Right Side

Left Side

Right Side

Left Side

Screw Extends

Screw Extends

17

8. Can I buy a jack with a clevis on both ends? Yes. When freedom of movement in two axes is required, a double clevis jack may be specified.

- Double clevis jacks incorporate a clevis machined or pinned on the screw end and also a clevis welded to the protection tube.

Screw travel is limited. Contact [email protected] for more information.

- Electric cylinders, integrated actuators, and linear actuators are also available with a clevis on both ends.

9. What is meant by self-locking? Self-locking is a term used to describe jacks that require power to move in either direction. They hold their position when power to the system is off. See page 10 for more details.

10. What if the jack is not self-locking? A brake is required on the input shaft of any jack that may lower under load (ball screw jacks, double-lead Acme screw jacks, integrated actuators, and electric cylinders that are more than 30% efficient). See page 10 for more details.

11. How much side load can be placed on a screw jack? Standard jacks and actuators are not designed for dynamic side loads. The load must be positioned axially. Static side loads are limited. Contact [email protected] for technical assistance. See page 10 for more details.

12. How much backlash is in a machine screw jack? In machine screw jacks there are two types of backlash: worm to wormgear backlash (typically 8-15 worm rotation), and lifting screw to nut backlash, sometimes called endplay (up to 0.020 inches on new standard jacks). Refer to the JAX Online browser-based software for information about specific jacks.

13. Can I reduce machine screw backlash? Yes, screw backlash can be adjusted on translating and keyed style machine screw jacks via one of the following anti-backlash options: standard split-nut design; A90 external nut adjustment; or A95 design. See page 181.

14. What is screw lead error? The deviation from the mathematical lead expressed in inches per foot cumulative.

15. What is the amount of lead error in a standard lifting screw? Rolled Acme screws have up to .010 in/ft cumulative error, milled Acme screws have up to 0.003 in/ft cumulative error; and ball screws have up to 0.007 in/ft cumulative error. Contact Joyce for more information.

16. Are Joyce/Dayton jacks and actuators user-serviceable? The level to which products can be serviced in the field varies from product to product. Refer to the product Operation & Maintenance Manuals or contact Joyce for more information.

17. What motor options are available? Motor options vary among product lines. Customers can use AC 3-phase, AC single-phase, DC motors, international voltage motors and others. Let us know your requirements.

The motors on linear actuators are an integral component. They are available in 120 VAC, or 12 VDC.

18. What is the clutch on a linear actuator and how is it used? A screw clutch device is an option on linear actuators (if they do not have limit switches). This device allows the screw to turn if the actuator is operated against a hard stop. This is an emergency protection device, not to be used repeatedly as an end of travel stop.

19. Are limit switches preset? No.

- Shaft-mounted rotary cam limit switches must be set to the required positions during installation.

- Limit switches on linear actuators must be set after the actuators have been installed in order to tailor the stop position to the individual application.

20. What do I need to consider when ordering a bellows boot to protect the lifting screw?

- Closed height dimensions may increase when boots are added.

- The customer must specify boot collar diameter when ordering bellows boots for KFTN jacks.

- Zippered boots are also available.

- Special boot material is available.

- Horizontal screw applications may require boot guides.

- See pages 170-173

21. Are jacks and actuators corrosion- resistant? Stainless steel jacks are inherently corrosion resistant. All exposed surfaces are stainless steel and aluminum bronze. Most other jacks can be modified with special finishes, coatings, and seals. Contact Joyce with your requirements. See Finishes on page 182.

22. What is a follower nut assembly and when is it helpful to have one? Follower nut assemblies allow customers to gauge the wear on the wormgear screw thread of translating jacks and on the traveling nut screw thread of KFTN jacks. This allows customers to replace the nut before its threads wear too thin to support the design load. These assemblies generally consist of a gear nut or traveling nut pinned to a second nut of dissimilar material. A preset gap separates the two nuts. As the wormgear or traveling nut threads wear, the preset gap narrows. The assembly is replaced when the gap measurement reaches the design limit. Follower nut assemblies are designed for specific applications. Contact Joyce for more information.


[email protected] joycedayton.com

ENGINEERING INFORMATION FAQ

18 joycedayton.com 2D and 3D models available on website Ordering information on pages 20 and [email protected] 800-523-5204

Versatile Joyce machine screw jacks lift and precisely position all kinds of loads from 250 pounds to 250 tons.

Upright or inverted, these precision jacks operate at full capacity whether the load is in tension or compression. WJ and RWJ series single lead jacks are self-locking under full lifting capacity. DWJ and DRWJ double lead series jacks offer increased travel speed.

Alloy steel input shafts, aluminum bronze wormgears and tapered roller or ball thrust bearings provide rugged reliability.

Double input shafts are standard. Single input shafts are available with right or left hand extension or additional length. Jacks are available with one of four standard end conditions or special ends to meet your requirements. All jack designs can be fitted with protective boots.

An optional anti-backlash feature (page 181) compensates for thread wear, assuring minimum play between lifting screw and wormgear for smooth, precise operation. Jacks equipped with the anti-backlash feature are rated at full capacity under static conditions. For anti-backlash jack capacity under dynamic conditions, please contact [email protected].

Joyce can customize machine screw jacks to meet your specifications.

800-523-52042D and 3D models available on website Ordering information on pages 20 and 21


MACHINE SCREW JACKSJoyce offers Machine Screw Jacks in several designs including: Translating Keyed for non-rotation Keyed for traveling nut (KFTN) Double clevis TrunnionA guide for ordering is on pages 20 and 21.

20

MACHINE SCREW JACKS ORDERING INFORMATION



U=Upright I=Inverted

1=T1 (plain end)

2=T2(load pad)

3=T3(threaded end)

4=T4(male clevis)

Sample Part Number: WJT65U1N-18.50-STDX-STDX-B

*Standard trunnion mounts available on 2-ton through 20-ton jacks. (See page 183)

Miniature 1-Ton 2-Ton 2-Ton Reverse Base 3-Ton 5-Ton 10-Ton 15-Ton 20-TonWJ250WJ500*WJ1000

WJ51WJ201

WJT62WJT122WJT242WJT252

RWJT62RWJT122RWJT242RWJT252

WJ63WJ123WJ243WJ253

WJT65WJT125WJT245WJT255

WJ810WJ2410WJ2510

WJ815WJ2415WJ2515

WJ820WJ2420WJ2520

DWJ62*DWJ122*DWJ242*

DRWJ62*DRWJ122*DRWJ242*



DWJ810*DWJ2410*

DWJ815*DWJ2415*

DWJ820*DWJ2420*

25-Ton 30-Ton 35-Ton 50-Ton 50-Ton Reverse Base 75-Ton 100-Ton 150-Ton 250-TonWJ1125WJ3225

WJ1130WJ3230

WJ1135WJ3235

WJT1150WJT3250

RWJT1150RWJT3250

WJ1175WJ3275

WJ12100WJ36100

WJ12150WJ36150

WJ50250

DWJ1125*DWJ3225*

DWJ1130*DWJ3230*

Important Note: *Not self-locking, may lower under load. Brake motors or external locking systems are recommended.D: Double Lead ScrewR: Reverse Base Jack, (only available on 2-ton and 50-ton jacks).

Instructions: Select a model number from this chart.

Jack Designs

S=Translating K=Keyed for Non Rotation

N=Traveling Nut D=Double Clevis A=KFTN Trunnion* T=Trunnion*

Jack Configuration

End Conditions

Additional Options*X=Standard Jack, no additional options

S=Additional Specification Required (comment as necessary)

Anti-Backlash p. 181A=Split NutA90=A90 DesignA95=A95 Design

Protective Boots pp. 170-173B=Protective BootD=Dual Protective Boot

Finishes p. 182F1=Do Not PaintF2=Epoxy PaintF3=Outdoor Paint Process

Motor OptionsM1=Less MotorM2=Brake MotorM3=Single Phase Motor (120VAC)M4=50Hz Motor M5=Special Motor

Grease/SealsH1=High Temperature OperationH2=Food Grade

Screw StopsST0=ExtendingST1=Retracting ST2=Both

* Specify as many options as needed

Left Side Shaft Code(see below)

XXXX=RemoveSTDX=Standard CUST=Custom

For optional shaft codes, see page 21.

Right Side Shaft Code(see below)



Machine Screw Jack RiseRise is travel expressed in inches and not the actual screw length.

21

Geared Potentiometers (p. 175)POTA=0-10VPOTB=4-20mAPOTC=0-10V w/2 switchesPOTD=4-20mA w/2 switchesIP65 rated enclosures

Hand Wheels (p. 180)HW04=4" diaHW06=6" diaHW08=8" diaHW10=10" diaHW12=12" dia

Encoders (pp. 176-177)ENCA=Absolute Encoder 0-10 VDC, programmable ENCB=Absolute Encoder 4-20mA, programmable ENCC=Absolute Encoder CAN Open ENCD=Absolute Encoder SSI ENCS=Stainless Steel Incremental Encoder 1024 PPR ENCX=Incremental Encoder 200 PPR ENCY=Incremental Encoder 1024 PPR

Motor Mounts (pp. 178-179)

MACHINE SCREW JACKS SHAFT CODES



Instructions: Select the appropriate shaft codes for both right and left hand shafts. One shaft code must be specified for each side of the jack.

Ordering Example:

MMA A

Motor code from chart at left

For servo motor mounts see p. 178

Standard motor adapters are aluminum.

MMA=56CMMB=140TCMMC=180TCMMD=210TC

MotorsSize Code

1/4 HP K

1/3 HP A

1/2 HP B

3/4 HP C

1 HP D

1-1/2 HP E

2 HP F

3 HP L

5 HP G

7-1/2 HP H

10 HP I15 HP J

Mechanical Limit Switches (p. 174)

Ordering Example: LA13

Models

Number of DPDT Switches

(see p. 174)

NOTE: Will always be

0 for LS7 models

Available PositionsModel Code 1 2* 3 4 5 6* 7 8

LS7-402 LILeft Side Shaft

Options

LS8-402 LA

LS8-404 LB

Right Side Shaft

Options

2, 3, 5, 10, 15, and 20 ton jacks are available with positions #1, #3, and #5 25, 30, 35, 50, 75, 100, and 150 ton jacks are available with positions #1, #4, #7, and #8*These positions are not standard. Contact Joyce with your requirements.

Screw Stops (p. 10) and Boots (pp. 170-173)Screw stops are optional on machine screw jacks. When specified, the closed height of the jack and/or the protection tube length may be increased.When boots are added to machine screw jacks, the closed height of the jack may be increased.

Mechanical Counters (p. 180)CNT0=0.001" IncrementsNote: Contact Joyce for availability and options.

Motors for Systems and Direct Drives (pp. 178-179) All standard motors are 3-phase, 208-230/460 VAC

or 230/460 VAC. Other motor options are available. Specify the appropriate motor size from the chart on the right.

Refer to the Additional Options chart on the preceding page as needed.

Brake motors (M2) are recommended for jacks that are not self-locking, and jacks with double lead screws.

If the motor frequency will be varied to provide a soft start an inverter duty motor may be required.

Recommended for self-locking jacks only.


MACHINE SCREW JACKS SPECIFICATIONSModel Capacity

Screw Diameter (Inches)

Thread Pitch/Lead

Worm Gear Ratio

Worm Shaft Turns for 1" Travel

Tare Torque

(Inch Lbs.)

Starting Torque

(Inch Lbs.)

Operating Torque

(Inch Lbs.)

Efficiency Rating % Approx.

Screw Torque (Inch Lbs.)

Basic Jack Weight (Lbs.)

Jack Weight per Inch

Travel (Lbs.)

WJ250 250 lbs. 1/2 .125 pitch STUB ACME 5:1 40 1 .025W*.018W*

@ 500 RPM 23.0 .050W* 1.2 0.1

WJ500 500 lbs. 5/8.125 pitch.250 lead

STUB ACME5:1 20 1 .041W* .030W* @ 500 RPM 27.2 .079W* 1.3 0.1

WJ1000 1,000 lbs. 5/8 .125 pitch STUB ACME 5:1 40 1 .030W*.021W*

@ 500 RPM 19.9 .059W* 1.3 0.1

WJ511 ton 3/4 .200 pitch ACME 2C

5:1 253

.038W* .026W* @ 500 RPM 25.0 .075W* 6 0.3WJ201 20:1 100 .017W* .009W* @ 500 RPM 15.9

(R)WJT62

2 ton 1

.250 pitch ACME 2C

6:1 24

4

.041W* .028W* @ 500 RPM 24.2

.098W*

15 0.3

(R)WJT122 12:1 48 .025W* .015W* @ 500 RPM 22.0

(R)WJT242 24:1 96 .018W* .009W* @ 500 RPM 18.3

(R)WJT252 25:1 100 .015W* .0085W* @ 500 RPM 17.0

D(R)WJ62.250 pitch .500 lead ACME 2C

6:1 12 .057W* .039W* @ 500 RPM 33.7

.139W*D(R)WJ122 12:1 24 .035W* .022W* @ 500 RPM 30.5

D(R)WJ242 24:1 48 .025W* .013W* @ 500 RPM 25.4

WJ63

3 ton 1

.250 pitch ACME 2C

6:1 24

6

.040W* .029W* @ 500 RPM 24.3

.098W*

17 0.4

WJ123 12:1 48 .025W* .016W* @ 500 RPM 22.2

WJ243 24:1 96 .017W* .009W* @ 500 RPM 18.5

WJ253 25:1 100 .0155W* .009W* @ 500 RPM 17.8

DWJ63.250 pitch .500 lead ACME 2C

6:1 12 .055W* .041W* @ 500 RPM 33.8

.139W*DWJ123 12:1 24 .034W* .022W* @ 500 RPM 30.7

DWJ243 24:1 48 .024W* .013W* @ 500 RPM 25.6

WJT65

5 ton 1 1/2

.375 pitch STUB ACME

6:1 16

10

.065W* .044W* @ 300 RPM 23.0

.151W*

32 0.7

WJT125 12:1 32 .041W* .025W* @ 300 RPM 20.6

WJT245 24:1 64 .029W* .015W* @ 300 RPM 16.7

WJT255 .250 pitch ACME 2C 25:1 100 .022W*.011W*

@ 300 RPM 13.4 .131W*

DWJ65.250 pitch.500 lead ACME 2C

6:1 12 .072W* .050W* @ 300 RPM 26.8

.171W*DWJ125 12:1 24 .045W* .028W* @ 300 RPM 23.9

DWJ245 24:1 48 .033W* .017W* @ 300 RPM 19.6

WJ810

10 ton 2

.500 pitch ACME 2C

8:1 16

20

.061W* .043W* @ 200 RPM 23.1 .195W*

43 1.3

WJ2410 24:1 48 .030W* .018W* @ 200 RPM 18.8

WJ2510 .250 pitch ACME 2C 25:1 100 .024W*.014W*

@ 200 RPM 11.3 .161W*

DWJ810 .333 pitch.666 leadACME 2C

8:1 12 .070W* .062W* @ 200 RPM 31.9 .228W*DWJ2410 24:1 36 .035W* .026W* @ 200 RPM 25.9

Important Note: Series DWJ double lead screw jacks and WJ500 screw jacks are not self-locking. Brake motors or external locking systems are recommended.(R): Reverse Base Jack. *W: Load in pounds.Tare Torque: Initial torque to overcome seal and normal assembly drag. This value must be added to starting torque or operating torque values.Starting Torque: Torque value required to start moving the rated load (dissipates to operating torque values once the load begins moving).Operating Torque: Torque required to continuously raise a given load at the input RPM listed.Note: If your actual input RPM is 20% higher or lower than the listed RPM, please refer to JAX Online to determine actual torque values at your RPM.Screw Torque: Torque required to resist screw rotation (Translating Design Jacks) and traveling nut rotation (Keyed for Traveling Nut Design Jacks).Lead: The distance traveled axially in one rotation of the lifting screw.Pitch: The distance from a point on a screw thread to a corresponding point on the next thread, measured axially. Note: This chart is provided for reference only. For specific information such as column loading, allowable continuous travel and other performance factorsplease refer to JAX Online software or contact Joyce.

23800-523-5204 2D and 3D models available on website Ordering information on pages 20 and [email protected] joycedayton.com

MACHINE SCREW JACKS SPECIFICATIONSModel Capacity

Screw Diameter(Inches)

Thread Pitch/Lead

Worm Gear Ratio

Worm Shaft Turns for 1" Travel

Tare Torque

(Inch Lbs.)

Starting Torque

(Inch Lbs.)

Operating Torque

(Inch Lbs.)

Efficiency Rating % Approx

Screw Torque (Inch Lbs.)

Basic Jack Weight (Lbs.)

Jack Weight per Inch

Travel (Lbs.)

WJ815

15 ton

2 1/4

.500 pitch ACME 2C

8:1 16

30

.069W* .047W* @ 200 RPM 21.1.210W*

59 1.4

WJ2415 24:1 48 .036W* .020W* @ 200 RPM 16.6

WJ2515 .250 pitch ACME 2C 25:1 100 .026W*.015W*

@ 200 RPM 10.2 .178W*

DWJ8152 1/4

.333 pitch .666 lead ACME 2C

8:1 12 .079W* .058W* @ 200 RPM 34.4.244W*

DWJ2415 24:1 36 .041W* .025W* @ 200 RPM 27.0

WJ820

20 ton

2 1/2

.500 pitch ACME 2C

8:1 16

40

.075W* .051W* @ 200 RPM 19.6.227W*

77 1.9

WJ2420 24:1 48 .039W* .022W* @ 200 RPM 15.4

WJ2520 .250 pitch ACME 2C 25:1 100 .029W*.016W*

@ 200 RPM 9.4 .194W*

DWJ8202 1/2

.375 pitch .750 lead ACME 2C

8:1 10.67 .088W* .061W* @ 200 RPM 24.5.272W*

DWJ2420 24:1 32 .046W* .026W* @ 200 RPM 19.3

WJ1125

25 ton

3 3/8.666 pitch

Stub ACME

11:1 16

50

.088W* .055W* @ 200 RPM 18.3.313W*

164 3.1WJ3225 32:1 48 .053W* .025W* @ 200 RPM 13.5

DWJ11253 3/8

.562 pitch 1.125 lead ACME 2C

11:1 9.5 .106W* .067W* @ 200 RPM 25.1.384W*

DWJ3225 32:1 28.5 .063W* .030W* @ 200 RPM 18.6

WJ1130

30 ton

3 1/2 .666 pitch ACME 2C

11:1 16

60

.088W* .055W* @ 200 RPM 18.3.313W*

164 3.0WJ3230 32:1 48 .052W* .025W* @ 200 RPM 13.5

DWJ11303 1/2

.5625 pitch 1.125 lead ACME 2C

11:1 9.5 .107W* .067W* @ 200 RPM 25.1.384W*

DWJ3230 32:1 28.5 .064W* .030W* @ 200 RPM 18.6

WJ113535 ton 3 3/4 .666 pitch ACME 2C

11:1 1670

.093W* .057W* @ 200 RPM 17.4.328W* 240 3.4

WJ3235 32:1 48 .055W* .026W* @ 200 RPM 12.9

(R)WJT115050 ton 4 1/2 .666 pitch ACME 2C

11:1 16100

.095W* .063W* @ 150 RPM 15.8.378W* 387 6.1

(R)WJT3250 32:1 48 .050W* .027W* @ 150 RPM 12.4

WJ117575 ton 5 .666 pitch ACME 2C

11:1 16155

.107W* .067W* @ 150 RPM 14.8.418W* 610 6.5

WJ3275 32:1 48 .056W* .028W* @ 150 RPM 11.7

WJ12100100 ton 6 .750 pitch ACME 2C

12:1 16205

.112W* .072W* @ 90 RPM 13.9.495W* 1010 10.0

WJ36100 36:1 48 .059W* .031W* @ 90 RPM 10.8

WJ12150150 ton 7 1.00 pitch ACME 2C

12:1 12300

.134W* .084W* @ 90 RPM 15.7.595W* 1350 12.2

WJ36150 36:1 36 .070W* .037W* @ 90 RPM 12.1

WJ50250 250 ton 9 1.00 pitch ACME 2C 50:1 50 500.036W*

@ 60 RPM 8.8 .711W* 3415 21.0

Important Note: Series DWJ double lead screw jacks and WJ500 screw jacks are not self-locking. Brake motors or external locking systems are recommended. (R): Reverse Base Jack.*W: Load in pounds.Tare Torque: Initial torque to overcome seal and normal assembly drag. This value must be added to starting torque or operating torque values.Starting Torque: Torque value required to start moving the rated load (dissipates to operating torque values once the load begins moving).Operating Torque: Torque required to continuously raise a given load at the input RPM listed.Note: If your actual input RPM is 20% higher or lower than the listed RPM, please refer to JAX Online to determine actual torque values at your RPM.Screw Torque: Torque required to resist screw rotation (Translating Design Jacks) and traveling nut rotation (Keyed for Traveling Nut Design Jacks).Lead: The distance traveled axially in one rotation of the lifting screw.Pitch: The distance from a point on a screw thread to a corresponding point on the next thread, measured axially. Note: This chart is provided for reference only. For specific information such as column loading, allowable continuous travel and other performance factorsplease refer to JAX Online software or contact Joyce.


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Inverted

Upright

Inverted traveling nut

Upright traveling nut

Typical Plan View

Right Side

Left Side

WJ 250

Material Notes: Housing and protection tube are aluminum. Lifting screw is 304 S.S., Input shaft (worm) is 416 S.S.

Note: Drawings are artists conception not for certification; dimensions are subject to change without notice.

MACHINE SCREW JACKS250 POUND - 1/2" SCREW


MACHINE SCREW JACKS

4

Upright

Upright

Inverted

traveling nutInvertedtraveling nut

Typical Plan View

TYPE 1PLAIN END

TYPE 2LOAD PAD

TYPE 3THREADED END

TYPE 4MALE CLEVIS END

Right Side

Left Side

Upright keyed

Inverted keyed

2 3/81.005.995

RISE + 7/16

1 1/2

4

5/16

2 1/41/2

1 1/2

4

1 1/4

3 3/4

3/4

3/81/2

.374

.373 BOTH ENDS1

1/2

1 5/82

3 1/44

1 1/8

1 1/8

2 1/44 1/2

.312

.310

7/8

7/8

2 1/4

1

RISE+ 4 1/2

27/32

11/32

2 3/8

RISE+ 2 1/2

1/16 x 45CHAMFER

9/32 (4) HOLESEQ. SP. ON 1 1/2 B.C.

1/2-20 UNF-2A

9/32 (4) HOLESEQ. SP. ON1 3/4 B.C.

1 1/8

.9381/8 X 1/16 X 3/4 LG.KEYWAY BOTH ENDS9/32 (2) HOLES

5/8 SPOTFACE

RISE + 7/16

2 5/16

1

1/4

BASE OF JACK

BUSHING 1 3/4 1 1/2 1 3/4 1 3/4

3/8

2 3/8

1/8 x 45CHAMFER

13/64

1 23/32

2 1/4

2 5/8

RISE+ 3/8

RISE+ 3/8

2 15/16

Material Notes: Housing and protection tube are aluminum. Lifting screw is 304 S.S. Input shaft (worm) is 416 S.S.

Note: Drawings are artist's conception - not for certification; dimensions are subject to change without notice.

WJ 500

500 POUND - 5/8" SCREW


MACHINE SCREW JACKS

Material Notes: Housing and protection tube are aluminum. Lifting screw is 304 S.S. Input shaft (worm) is 416 S.S.


Inverted keyed Inverted

Upright Upright keyed


Upright traveling nut Typical Plan View

Right Side

Left Side

WJ 1000

1000 POUND - 5/8" SCREW



Upright

Upright keyed


Upright traveling nutTypical Plan View

Right Side

Left Side

MACHINE SCREW JACKSWJ 51 / WJ 201

1 TON - 3/4" SCREW

Material Notes: Housing and protection tube are aluminum. Lifting screw is cold drawn steel (CDS). Input shaft (worm) is CDS.




Upright

Upright keyed



Typical Plan View

Double Clevis

Right Side

Left Side

MACHINE SCREW JACKSWJT 62 / DWJ 62WJT 122 / DWJ 122WJT 242 / DWJ 242WJT 252

2 TON - 1" SCREW



MACHINE SCREW JACKS


Upright

Upright keyed



Typical Plan View*

Double Clevis

Right Side

Left Side

RWJT 62 / DRWJ 62 RWJT 122 / DRWJ 122 RWJT 242 / DRWJ 242 RWJT 252

2 TON REVERSE BASE - 1" SCREW

*Ideal for DD motor mounts or for large diameter couplings.


MACHINE SCREW JACKS


Inverted keyed

Inverted

UprightUpright keyed



Typical Plan View

Double Clevis

Right Side

Left Side

Note: Drawings are artists conception not for certification; dimensions are subject to change without notice. Minimum closed dimensions do not apply to upright keyed jacks.

WJ 63 / WJ 123 / WJ 243 / WJ 253DWJ 63 / DWJ 123 / DWJ 243

3 TON - 1" SCREW

MACHINE SCREW JACKS






Typical Plan View

Double Clevis

Right Side

Left Side


WJT 65 / DWJ 65WJT 125 / DWJ 125 WJT 245 / DWJ 245 WJT 255

5 TON - 1 1/2" SCREW


MACHINE SCREW JACKS





Typ i cal Plan View

Double Clevis

Right Side

Left Side


WJ 810 / DWJ 810 WJ 2410 / DWJ 2410 WJ 2510

10 TON - 2" SCREW

MACHINE SCREW JACKS

34Note: Drawings are artists conception not for certification; dimensions are subject to change without notice.

joycedayton.com 2D and 3D models available on website Ordering information on pages 20 and 21



Upright

Upright keyed



Typical Plan View

Double Clevis

Right Side

Left Side

WJ 815 / DWJ 815 WJ 2415 / DWJ 2415 WJ 2515

15 TON - 2 1/4" SCREW

MACHINE SCREW JACKS






Typical Plan View

Double Clevis

Right Side

Left Side

WJ 820 / DWJ 820 WJ 2420 / DWJ 2420 WJ 2520

20 TON - 2 1/2" SCREW





MACHINE SCREW JACKS





Typical Plan View

Double Clevis

Right Side

Left Side

WJ 1125 / DWJ 1125 WJ 3225 / DWJ 3225

25 TON - 3 3/8" SCREW

MACHINE SCREW JACKS




WJ 1130 / DWJ 1130 WJ 3230 / DWJ 3230

30 TON - 3 1/2" SCREW

MACHINE SCREW JACKS




Inverted keyed

Inverted




Typical Plan View

Right Side

Left Side

WJ 1135 WJ 3235

35 TON - 3 3/4" SCREW

MACHINE SCREW JACKS




Inverted keyedInverted




Typical Plan View

Right Side

Left Side

WJT 1150 WJT 3250

50 TON - 4 1/2" SCREW

MACHINE SCREW JACKS






Typical Plan View

Right Side

Left Side

RWJT 1150 RWJT 3250

50 TON REVERSE BASE - 4 1/2" SCREW


MACHINE SCREW JACKS






Inverted traveling nut Upright traveling nut

Typical Plan View

Right Side

Left Side

WJ 1175 WJ 3275

75 TON - 5" SCREW

MACHINE SCREW JACKS

42Note: Drawings are artists conception not for certification; dimensions are subject to change without notice. Minimum closed dimensions do not apply to upright keyed jacks.



Typical Plan View





Right Side

Left Side

WJ 12100 WJ 36100

100 TON - 6" SCREW

MACHINE SCREW JACKS




Typical Plan View


Upright

Upright keyed

Right Side

Left Side

WJ 12150 WJ 36150

150 TON - 7" SCREW

MACHINE SCREW JACKS




WJ 50250

250 TON - 9" SCREW

Typical Plan View



Right Side

Left Side

45


Joyce offers Machine Screw ComDRIVEs in several designs including: Translating Keyed for non-rotation Keyed for traveling nut (KFTN) Double clevis Trunnion mountA guide for ordering is on pages 46 and 47.

Joyce machine screw ComDRIVEs combine a machine screw jack, motor and gear reducer into a single compact unit. ComDRIVEs are available in 2-ton through 30-ton capacities. They provide travel speeds up to 35.1 inches per minute. ComDRIVEs with single lead screws (CD) are self-locking; those with double lead screws (DCD) may require a brake motor or external locking device to hold position.

Four standard end conditions are available and ComDRIVEs can be fitted with protective boots. Limit switches, anti-backlash devices, and other options are also available.

ComDRIVE Benefits:

Can power an entire jacking system.

Reduces the number of components that must be specified.

Simplifies design.

Reduces installation costs with only a single plate needed to mount the jack body.

Reduces the number of couplings and shafts required in multi-jack systems.

Standard 230/460 volt, 3-phase, 60 hertz motor included.

ComDRIVEs can be specified without the motor. The reducer flange accepts standard NEMA motor frame sizes.

Joyce can customize ComDRIVEs to meet your specifications. Ask about larger size ComDRIVEs.




MACHINE SCREW ComDRIVEs ORDERING INFORMATION2-Ton 3-Ton 5-Ton 10-Ton 15-Ton 20-Ton 25-Ton 30-Ton

CD62CD122CD242

CD63CD123CD243

CD65CD125CD245

CD810CD2410

CD815CD2415

CD820CD2420

CD1125CD3225

CD1130CD3230

DCD62*DCD122*DCD242*



DCD810*DCD2410*

DCD815*DCD2415*

DCD820*DCD2420*

DCD1125*DCD3225*

DCD1130*DCD3230*

Important Note: *Not self-locking, may lower under load. Brake motors or external locking systems are recommended.DCD: Double lead screw.(For 25:1 ratio contact Joyce.)

U=Upright I=Inverted

1=T1 (plain end)

2=T2(load pad)

3=T3(threaded end)

4=T4(male clevis)

Sample Part Number: CD65U2S-18.50-P1AB-STDX-B

*Standard trunnion mounts available on 2-ton through 20-ton jacks. (See page 183)

Jack Configuration

End Conditions

Additional Options*X=Standard Jack, no additional options

S=Additional Specification Required (comment as necessary)

Anti-Backlash p. 181

A=Split NutA90=A90 DesignA95=A95 Design

Protective Boots pp. 170-173B=Protective BootD=Dual Protective Boot

Finishes p. 182F1=Do Not PaintF2=Epoxy PaintF3=Outdoor Paint Process

Motor OptionsM1=Less MotorM2=Brake MotorM3=Single Phase Motor (120VAC)M4=50Hz Motor M5=Special Motor

Grease/SealsH1=High Temperature OperationH2=Food Grade

Screw StopsExtending and retracting stops are standard on ComDRIVEs.

* Specify as many options as needed

Left Side Shaft Code (see below)



Right Side Shaft Code (see below)



Jack Designs

S=Translating K=Keyed for Non Rotation

N=Traveling Nut D=Double Clevis A=KFTN Trunnion* T=Trunnion*

ComDRIVE RiseRise is travel expressed in inches and not the actual screw length.When companion jacks are ordered with the ComDRIVE, their screws are lengthened to match the ComDRIVE.

Instructions: Select a model number from this chart.

47

MACHINE SCREW ComDRIVEs SHAFT CODES



All standard motors are 3-phase, 208-230/460 VAC or 230/460 VAC. Other motor options are available including international voltages, and single phase AC. Specify the appropriate motor size from the chart above. Refer to the Additional Options chart on the preceding page as needed. Brake motors are required for ball screw ComDRIVEs. Contact Joyce for options that are not listed.

Instructions: Select the appropriate shaft codes for both right and left hand shafts. One shaft code must be specified for each side of the ComDRIVE.

Mechanical Limit Switches (p. 174)

Ordering Example: LA13

Models

Number of DPDT Switches

(see p. 174)

NOTE: Will always be

0 for LS7 models

Available PositionsModel Code 1 2* 3 4 5 6* 7 8

LS7-402 LILeft Side Shaft

Options

LS8-402 LA

LS8-404 LB

Right Side Shaft

Options

2, 3, 5, 10, 15, and 20 ton ComDRIVEs are available with positions #1, #3, and #5. 25 and 30 ton ComDRIVEs are available with positions #1, #4, #7 and #8.* These positions are not standard. Contact Joyce with your requirements.

MotorsSize Code

1/4 HP K

1/3 HP A

1/2 HP B

3/4 HP C

1 HP D

1-1/2 HP E

2 HP F

3 HP L

5 HP G

7-1/2 HP H

10 HP I15 HP J

ComDRIVE Reducers (pp. 49-57)

Ordering Example: P2AC

Mounting Positions RatioCode P1 P2 P3 P4 5:1

Code A

7.5:1 Code B

10:1 Code C

15:1 Code D

Special Ratio Code X

Left Side Shaft Options

Right Side Shaft Options

Motor code from chart at right

Screw Stops (p. 10) and Boots (pp. 170-173)Extending and retracting screw stops are standard on ComDRIVEs. When boots are added to ComDRIVEs, the closed height of the unit may be increased.

Mechanical Counters (p. 180)CNT0=0.001" IncrementsNote: Contact Joyce for availability and options.

Encoders (pp. 176-177)ENCA=Absolute Encoder 0-10 VDC, programmableENCB=Absolute Encoder 4-20mA, programmableENCC=Absolute Encoder CAN OpenENCD=Absolute Encoder SSI ENCS=Stainless Steel Incremental Encoder 1024 PPR ENCX=Incremental Encoder 200 PPR ENCY=Incremental Encoder 1024 PPR

Geared Potentiometers (p. 175)POTA=0-10VPOTB=4-20mAPOTC=0-10V w/2 switchesPOTD=4-20mA w/2 switchesIP65 rated enclosures


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MACHINE SCREW ComDRIVEs SPECIFICATIONS2 Ton Model Number CD62 CD122 CD242 DCD62 DCD122 DCD242

Reducer Ratio 5 7 1/2 10 5 7 1/2 5 7 1/2 10 5 7 1/2 10 7 1/2 5 7 1/2 10Travel Speed IPM 13.88 9.50 7.04 6.94 4.75 3.47 2.38 1.76 27.75 19.00 14.08 9.50 6.94 4.75 3.52

Lifting Capacity, Lbs.

1/3 HP 1,865 2,650 3,500 3,350 4,000 4,000 4,000 4,000 1,300 1,850 2,450 3,300 3,830 4,000 4,0001/2 HP 2,875 4,000 4,000 4,000 2,000 2,825 3,720 4,000 4,0003/4 HP 4,000 3,060 4,000

3 Ton Model Number CD63 CD123 CD243 DCD63 DCD123 DCD243Reducer Ratio 5 7 1/2 10 5 7 1/2 5 7 1/2 10 5 7 1/2 10 7 1/2 5 7 1/2 10Travel Speed IPM 13.88 9.50 7.04 6.94 4.75 3.47 2.38 1.76 27.75 19.00 14.08 9.50 6.94 4.75 3.52


1/3 HP 1,910 2,700 3,555 3,425 4,790 5,610 6,000 6,000 1,335 1,890 2,485 3,350 3,925 5,415 6,0001/2 HP 2,920 4,095 5,380 5,235 6,000 6,000 2,045 2,865 3,765 5,085 6,000 6,0003/4 HP 4,430 6,000 6,000 3,100 4,340 6,000

5 Ton Model Number CD65 CD125 CD245 DCD65 DCD125 DCD245Reducer Ratio 5 10 10 10 5 10 10 10Travel Speed IPM 20.81 10.56 5.28 2.64 27.75 14.08 7.04 3.52


1 HP 3,760 6,980 10,000 10,000 3,320 6,170 10,000 10,0001 1/2 HP 5,755 5,085

2 HP 7,750 6,845

10 Ton Model Number CD810 CD2410 DCD810 DCD2410Reducer Ratio 5 10 5 10 5 10 5 10Travel Speed IPM 20.81 10.56 6.94 3.52 27.76 14.09 9.25 4.69


1 HP 3,680 7,070 9,000 16,760 3,150 6,045 7,700 14,3301 1/2 HP 5,760 14,090 4,925 12,050

2 HP 7,840 19,165 6,700 16,3903 HP 12,150 20,000 20,000 20,000 10,385 19,450 20,000 20,0005 HP



1 HP 3,140 6,200 7,535 14,385 2,715 5,365 6,515 12,4401 1/2 HP 5,035 12,085 4,350 10,450

2 HP 6,925 16,620 5,990 14,3753 HP 10,850 20,425 26,040 30,000 9,380 17,665 22,520 30,0005 HP 18,515 30,000 16,010 30,000

20 Ton Model Number CD820 CD2420 DCD820 DCD2420Reducer Ratio 5 10 5 10 5 10 5 10

Travel Speed IPM 20.81 10.56 6.94 3.52 27.76 14.09 9.25 4.69


1 HP 2,715 5,570 6,520 12,920 2,265 4,645 5,435 10,7651 1/2 HP 4,475 10,745 3,730 8,960

2 HP 6,235 14,965 5,195 12,4753 HP 9,880 18,785 23,715 40,000 8,235 15,660 19,770 36,3005 HP 17,000 40,000 14,175 34,020



3 HP 9,050 17,165 20,390 36,800 7,385 14,000 16,640 30,0405 HP 15,700 29,420 35,390 50,000 12,815 24,010 28,885 50,000

7 1/2 HP 23,930 45,755 50,000 19,530 37,340 44,01010 HP 32,625 50,000 26,625 50,000 50,00015 HP 49,410 40,325



3 HP 9,435 17,540 21,260 37,620 7,535 14,000 16,975 30,0405 HP 16,100 29,815 36,280 60,000 12,885 23,810 28,970 51,060

7 1/2 HP 24,335 46,170 54,840 19,430 36,870 43,790 60,00010 HP 33,040 60,000 60,000 26,385 49,300 59,46015 HP 49,845 39,800 60,000

Important Note: DCD models may lower under load. Brake motors or external locking systems are recommended.




CD 62 / DCD 62CD 122 / DCD 122CD 242 / DCD 242

2 TON - 1" SCREW



51800-523-5204 2D and 3D models available on websi

view the new joyce/dayton product catalog the new joyce/dayton product catalog

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